Fluid-heater



FLUID HEATER.

APPLxcATloN FILED JUNE 5, 1919.

ATTORNEYS v V'JULIUS BRAUNSTEIN, OF NEW YORK, N. Y.

n FLUID-HEATER.

Specification of Letters Patent. Patented Oct 19, 1920.

i Appnea'ion mea. ruhey 5, 1919. rserial No. `301,900.

To all wh-om tmajz/ concern.'

Be it known that l, JLiUs BnAUNsrniN, a citizen of the United States, and a resident of the city of New York, borough oth/lanhattan, in the county and State of New York, have invented' a new and Improved llluid-l-leater, of which the following is a full, clear, and exact description.

rihis invention relates to a fluid heater, and aims more particularly to provide a de vice of this nature which shall utiliz/.e heat which is normally wasted, for the purpose of heating fluid, such as water, for any purpose desired. n

A further object of this invention is the provision ofV a heater which may be' interposed in the flue of a burner, stove, or other heating plant, which is adapted to absorb all of the heat possible from the products of combustion comingv in contact with the same and to transmit such heat to fluid, such as water, which water may be stored ina tank and subsequently utilizedfor domestic purposes. y

A Still further object of theinvention is the construction of a4` fiuid heater which shall readily7 heat iiuid, such as water, so that the water may be run through `the same almost continuously and be drawn .olf warm. i

Another object of this invention is the incorporation of `construction which vwill render the cleaning of the heater very simple, in that all parts of the same are'readily accessible.

A final object of the invention is the provision `of a heatery Vwhich shall be yeX- tremely simple in construction and, consequently, economical in manufacture.

Reference is had to the accompanying drawings which illustrate one practical'embodiment of my invention, and in which#- Figure 1 is a side view partly insection of my preferred form of fluid heater; y

Fig. 2 is a sectional view taken along line 2 2 of Fig. 1; .e

F ig. 3 is a side viewof the heating unit of a modified form of construction; and

Figs. f1 and are'sectionalzviews taken along the lines 4 and 5 respectively of l ig. 3.

In all these various views like reference numerals designate similar parts, and the reference numeral 1 is the iireplate of an ordinary stove, or heater, over which the device may be directly positioned, if so desired, which is formed flue-pipe collar 2.

@ver this connection there is positioned a casing, including ya hollow, cylindrical shell, such as 3, which has removablysecured to its ends, by means of ders such as 1, funnel-shaped members, ias indicated by the reference numeral 5. The lower of these funnel-shaped members 5 has its lower kedges abutting against the with the ordinary flanged shoulupper surface of the fireplate` 1, and is` K adapted to encircle the flue-pipe collar 2.

The upper end of the upper funnel `member 5 is connected tothe continuation 6 of the taken, however, to prevent any great amount vof leakage through the joints, which would flue in any suitable manner, care being heating unit may be viewed and rendered accessible for cleaning purposes.

Suspended `within such shell, by means hereinafter more fully specified, is the `heating unit, which in Figs. 1 and 2 includes an upper hollow head, such as 8, which may be of any suitable construction as long as such head includes a chamber with which the upper open ends of the vertically-.extending tubes 9 and the outlet pipe 10k communicate. The tubes 9 may be formed of any suitable material, but the same are preferably constructed of a good heat-conducting metal, such as copper. n f

The lower ends ofthe tubes 9 communicate with apsecond head, such as l1, whichI second head is formed with va centrally- :extending opening 12 "and an inlet pipe 13. The heads and associated tubes are suspended within the shell 3 yby any suitable means, such as radially-extending lingers' 14 which have their inner ends suitably secured to the heads 8 and 11 respectively, their outer ends being secured to the shell 3.

.The outlet pipe 10 is preferably conf. structed with a combined cut-.od and three' way valve 15, by means of which the fluid may `be either entirely -cut oif, should the necessity arise, or, by attaching a hose to the outlet 16, thejnozzle of the hose might be introduced through either of the doors 7, and any. accumulationof soot deposited by the products of combustion may be iiushed out of the shell 3.

If it is desired, the heating unit may have associated with it a certain construction hereinafter described, which willl result in the products of combustion giving their heat more efliciently to the tubes 9. This construction referred to comprises simply .a spirally arranged flange, such as 17, which may be supported within the shell 3 and around the tubes 9 by means of fingers, such as 18, having their inner ends connected to one of the lingers 1&1, or to any suitable part of the shell or the heads, and their outer ends secured adjacent to the upper and lower ends respectively of the flange 17.

In some instances, it may be desirable to produce water which is on the point of becoming steam, or is actually steam. To provide 'for this necessity, I have constructed a modified form of fluid heater, suchasillustrated in Figs. 3, and 5, which includes heads 19 and 20 with which the outlet and inlet pipes 21 and 22 are respectively connected. Contrary to the construction illustrated in Figs. 1 and 2, however, I provide a continuous pipe, such as 23, which has its lower end preferably centrally connected to the head 20, and extends thence as a continuous passage in the formiof'V a zigzag between the heads 19 and 20, and has its upper, or outlet, end eon'imunicating with the head 19, with which the outlet pipe 21 communicates. In this modified form of construction lingers, such as 24, are also utilized for supporting the device within the shell. y

In operation it `will now be appreciated that the heating unit disclosed in connection with Figs. 1 and 2 might be made part of the usual fluid-heating system. that it might be in continuous circulation with a boiler, and that the same holds true in connection with the modified form illustrated in Figs. 3, 4 and n It will be appreciated that in both of Ithese forms the water enters through the inlet pipe and passes into the head. In Jdie construction illustrated inv Fig. 1, a lgreat amount of water heated to a suliiciently hi gli point for all practical purposes is provided by means of the water to be heated passing through the lower head and through the pipes 9 into the upper head, and thence storage tank. IVhile this operation is talring place, the hot products of combustion are either passing directly upward between the shell 3 and the pipes '9 `or between the pipes 9 by means-of the opening 12, or, if the spiral flange 17 `is applied, they will follow this flange, for a great part, and, thus, the heat otherwise wasted will be utilized.

In the construction illustrated in Figs. 3, 4:, and 5, no where near such an amount of water is heated as in the preferred 'forni ol construction, but, as already pointed out, this water is heated to a great degree, and

`it might be foiuid in some instances extremely practical to apply this construction, or heater, -to a flue.

`It is to be appreciated that although I Vhave illustrated my fluid heater extending vertically, the saine may be laid in a horizontal or a slightly inclined position, as my device is adaptable to all positions and conditions.

Further, any number of modifications might be resorted to in connection with my construction without in the least departing from the scope of my invention.

Having thus described my invention, I desire to claim:

1. A fluid heater, including a shell, an upper and lower head within said shell, heat-distributing tubes extending between said heads, inlet and outlet pipessecured Vto the lower and upper of said heads respectively, supporting'fingers extending between such heads and the sides of the shell for properly `retaining the heads in applied kposition, and a spiral flange extending between the upper and lower heads and around the tubes, such flange being retained in applied position; by means of secondary fingers having one of theirends secured to the flange, their opposite ends being connected to one of the heads.

tion following the said flange whereby they assume a circuitous route through said shell and in contact with said fluid heating unit.

3. A fluid heater. including a shell Jformed `with inlet and outlet openings, a fluid hcatthrough the outlet pipe 10 into. a suitable ing unit positioned wit-hin said shell, said unit including heads, and tubes extending between and in communication with said heads, one of such heads being formed with' a centrally extending opening through its body, the second head being iiiipcriioi'ate,

and inlet and outlet pipes projecting .through said shell and in communication one with each of said heads respectively.

JULIUS BRAUNSTEIN. 

